The doctor tells the patient that he is too fat to play the game of football, and that he needs to get a new set of legs. The patient says that he has read two books about western medicine, but that he does not understand the difference between Chinese medicine and western medicine. The doctor explains that the patient's problem is a broken toothpaste, which can be repaired by using a tiny substance called "nanotechnology" . He explains that in traditional Chinese medicine, the practice of repairing broken bones dates back thousands of years, and this is what he is going to do with the patient.